inputFF()
	font-family: Arial, "Microsoft Yahei", "Helvetica Neue", Helvetica, sans-serif;
posr()
	position: relative
posa()
	position: absolute
fl()
	float: left
fr()
	float: right
oh()
	overflow: hidden
ws()
	white-space: nowrap
to()
	text-overflow: ellipsis
	oh()
	ws()
twoline()
	overflow : hidden
	text-overflow: ellipsis
	display: -webkit-box
	-webkit-line-clamp: 2
	-webkit-box-orient: vertical
	
		
